<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMDYvOTRlODYzNjQtMmQ4MS00NWRkLTgwZDgtMDU3ZWVhMGEwNGQyLmpwZw==.jpg"></p><p>The key to survival for Bitcoin miners boils down to the delicate balance between the revenue and the operating cash flow. </p>